Question

A thin uniform rod has a length of 0.520m and is rotating in a
circle on a frictionless table. The axis of rotation is
perpendicular to the length of the rod at one end and is
stationary. The rod has an angular velocity of 0.42 rad/s and a
moment of inertia about the axis of 2.80×10?3 kg*m^2. A bug
initially standing on the rod at the axis of rotation decides to
crawl out to the other end of the rod. When the bug has reached the
end of the rod and sits there, its tangential speed is 0.189 m/s .
The bug can be treated as a point mass.What
is the mass of the rod?What
is the mass of the bug?